Re: Is there still a problem with class names using non ASCII characters?

"Mike Schilling" <>
Sat, 18 Aug 2007 01:10:26 GMT
"Lew" <lew@lewscanon.nospam> wrote in message

Bamako sur Seine wrote:

On 26 juil, 09:42, Lew <l...@lewscanon.nospam> wrote:

Bamako sur Seine wrote:

Is there still a problem with class names using non ASCII [sic]

There's no problem, they're just forbidden by the language spec.

According to the JLS[1]:

An identifier is an unlimited-length sequence of Java letters and Java
digits, the first of which must be a Java letter.


The Java letters include uppercase and lowercase ASCII Latin letters
A-Z (\u0041-\u005a), and a-z (\u0061-\u007a), and, for historical
reasons, the ASCII underscore (_, or \u005f) and dollar sign ($, or
\u0024). The $ character should be used only in mechanically generated
source code or, rarely, to access preexisting names on legacy systems.

include does not mean limited to...>
Letters and digits may be drawn from the entire Unicode character set,
which supports most writing scripts in use in the world today,
including the large sets for Chinese, Japanese, and Korean. This
allows programmers to use identifiers in their programs that are
written in their native languages.

In that case, there is no problem using non-ASCII characters for class
names. Was there ever?

It used to be impossible to refer to non-ASCII classes in a jar's manifest
file; see That
made it tricky for the main class of an executable jar to be non-ASCII.

This has apparently been fixed.

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